Automatic shuttle-changing mechanism for double looms



Feb. 17, 1931. R. w. KNowLToN ET AL. 1,793,325'

AUTOMATIC SHUTTLE CHANGING MECHANISM FOR DOUBLE LOQMS Filed oct. 26,192B '7 Sheets-Sheet 2 Feb. 17, 1931. R. w. KNOWLTON Em. 1,793,325

4AUTOMATIC SHUTTLE CHANGING MECHANISM FOR DOUBLE LOOMS l Feb. 17, 1931.R. w. KNowLToN ETAL 1,793,325

AUTOMATIC SHUTTLE GHANGING-MECHANISM FOR DOUBLE LOOMS Filed oct. 26,1928 v sheets-sneer@ Ilz-9.25 1131.16 @9.17

Feb. 17, 1931.

R. W. KNOWLTON ET AL AUTOMATIC SHUTTLE CHANGING MECHANISM FOR DOUBLELOOMS Filed Oct. 26,'

1928 7 Sheets-SheetA 5 Feb- 17, 1931 R. w. KNowLToN ET AL 1,793,325

AUTOMATIC SHUTTLE CHANGING MECHANISM FOR DOUBLE LOOMS Filed ocr. 26,1928 7 sheets-sheet ves /x f I c Y R Inl/enfans. 42 f/ W//von/L To/v,

Hf/orne? Feb. 17, 1931. n R. w. KNOWLTQN ET Al.- 1,793,325

AUTOMATIC SHUTTLE CHANGING MECHANISM FOR DOUBLE LOOMS Filed Oct. 26,1928 7 Sheets-Sheet 7 )W70/we y APatented Feb. 17, 1931 UNITED --sTATEsPATENT OFFICE- RALPH w. Known'oN AND HAROLD c. BENNETT, "or wFsTBpoo'x,Manin, Ass-IGNoBs,

A:BY MESNE ASSIGNMENTS, T .SANFORD MILLS, OF SANFORD, A CORPORA- TION OFMAINE Y AUTOMATIC SHUTTLE-CHANGING Tiramisu son. poUBLE'Looms which argVemployed two shuttlesope'rating simultaneously.

The general object of provide means by which a practically threadlessbobbin maybe automatically replaced by another in which is afully-stocked bobbin, the transfer being made without interrupting theoperation of the loom, and without particularl attention being given thematter by the loom tender.

In a coipending application for a patent on shuttle-changing devices,liled by us on January 27 1928, Ser. No. 249,905, a construction isdisclosed which contemplates a combined manual and automatic actuationof the parts to accomplish 4this purpose, but in this invention theoperator of the loom requires .to be constantly on the watch for anyempty bbbbin and must start the mechanism vwhich automatically makes thetransfer of shuttles just prior to the complete depletion of the threadon the bobbin. r In our present invention no manual effort .on the partof the loom tender is required in the operation .of changing theshuttles. stead, there is provided in each shuttle a resilient feelermaking continual contact withv the outside layer of thread wound on thebobbin.

As the thread is taken away in the process of weaving, the feeler movesinwardly, or toward the axis -ofvthe bobbin,

when the bobbin has become nearly depleted yof thread, completes andcloses an electric cir- -cuit by contacting with a metallic'element theshuttle which, with interconnecting conductors in the shuttle-box causesa mag- 4net or solenoid included in the circuit to be energized and toput into action certain parts of the apparatus which enables those.immediately concerned in the shuttlerchanging to function.

.` ing time which in One of the fundamental objects of our improvedapparatus, which is fullyrautomat-ic in itsI action, is to eliminate theloss pj operatloom is occasioned by frequent shut-downs to rel-stock theshuttle. notherobject concerns the method of disour invLentiony is toashuttle containing b disarrang'gement of any of the-individual andfinally,

the conventional type of Appuation, meaogtpber 26, 1928. serial No.A315,170.

charging the empty'shuttles from, and ad-4 mitting the fully stockedones to the shuttlebox,-the latter operation being performed by simplyallowing the shuttle at the propertimekto fall into its position in theshuttle- And a further object resides in the safety mechanisms providedfor fortifying the several portions of the apparatus againstaccidentalinjury due to the non-functioning1'or ments.

We have other objects in view and these will be s et forth hereinafter,as the' description of the apparatus develops, and for the purpose ofillustrating our prepared the accompanying drawings dis-y closing oneand the preferred. embodiment thereof. j

In these drawings,-

Fig. 1 is a sidev elevation. of the apparatus, the lay being shown inforward position and the shuttle-box raised;

invention we -have j Fig. 2 is a detail showing a `fragmentaryl l planview of the locking mechanism;

Fig. 3 is a view in section, taken on line 3 3, Fig. 1;

Fig. 4 is a view showing a possible condition with respect to the camactuated portion Iof the apparatus; Y

Fig. 5 is a side elevation of the apparatus with the lay shown inbackward position and the shuttle-box lowered; v

Fig. 6 is an end elevation of the device;

Fig. r7 "s an end elevation of the shuttleejecting parts;

Fig. 8 isfa transverse sectional view through the shuttle-boli andoperating parts immediately connected therewith;

Fig. 9 shows means to prevent interference between the picker-heads andshuttles when j the shuttle-box isu lowered;

Fig. 10 is a sectional view of the lower end* of the shuttle-box raisingstandard;

u Figs. A 11 and 1 2 are details in connection with the ejectin parts;

Figs." 13fto 1 inclusive show, diagram- I i tric circuit; y

cut the thread,

l one having three compartments.

p Fig. 21 is a' plan view of the shuttle separating and droppingmechanism;

Fig. 22 is an elevation of two shuttles with the separating platesinterposed; I

1g. 23 is a diagrammatical outline of the loom, showing the wiringdiagram for the electrically actuated shuttle release mechanism.

Figs. 24 to 28, inclusive, sectional views illustrating the sequence ofmovements of the parts vcovering one cycle in the operation of ejectingan empty shuttle and placing in operative position in the apparatus afully stocked shuttle, the sections being taken longitudinally of theshuttle boxes. Y

Fig. 29 is a detailed horizontal sectional view illustrating thearrangement of the shuttle ejecting slide; l

Y Figs. 30 to 33, inclusive, are detailed views illustrating theconstruction of the mechanism for stopping the loom should the ejectingmechanism fail in discharging the empty ShuttleJ from the bottom box ofthe three shuttle box assembly.

Figs. 34 and 35 show a plan and end view, respectively, of the mechanismemployed to previous to the ejection of the empty shuttle.

Similar reference characters are employed to id entifyr like parts inall views of the rawings.

Inv equipping a loom with our shuttlechanging device it is necessary todiscard one of the original shuttle-boxes and substitute The passmg ofthe shuttles back and forth from one shuttle-box to the other isaccomplished in `substantially the vsame manner as it is in theordinarytype-of loom and all movements of v the new parts are timed insynchronism with anism must be the Jfrane of the the driving mechanismfor the other parts of the loom. j

As our apparatus is inoperative a greater portion of the time it isnecessary to provide therein the proper facilities to insurecoordination .between the movements df the different elements, the oldand the new, so that no interruption tinuity of operation of the loom asa whole, when the time arrives for placing a fully stocked shuttleinservice. In other words, the insertion of a new shuttle into themechdone in the proper sequence of loom movements. l

Referring to Figs. 1, 5 and`6, 1 represents loom, or that portion of itare diagrammatic ond lever 14 which/is shall take place in theconturewhich have most intimate connection On the shaft 5 lis a cam 6 havingtwo dwells or concentric peripheral surfaces of different dlameters. Inthe operation of the loom this cam rotates continuously.

Pivoted on the pin 7 secured in a bracket on the side of the frame is alever 8 on the upper side of which is an arm 9 carrying a parts includedin our present invenroll 10. From the pin 11 hangs'a link 12l connectedat its lower end, at 13, with a secl fulcrumed on a pin 15 1n a'bearing16. An extended portion of the lever 14 makesfconnection at 17 wit theshutle-box lifting standard 18.

Journalled on the pin 19 is a rock-shaft 20, the outer end, at 21, beingconnected to the rod 22, which latter extends upwardly and makesconnection, at 23, with one arm of the bell-crank 24 journalled on thepin 25 in the vbracket `26. The other arm of th'e bellcrank carries aninwardly disposed stud 27. When no shuttles are being changed theforegoing parts, with the exception of the cam 6, remain stationary andas shown in Fig. 1, being lock, d by the engagement of the short arm 28of the rock-shaft 20, with the free end of the lever 8. The spring 29serves to hold the engaging parts in strong contact. j

The picker-stick 30 is made similarly to and operates in the same manneras in looms generally; the same is partly true of the Aen picker-heads31, but the shuttle-box 32, containlng three shuttle compartments, a, band c, is dissimilar. In Fig. 8 is shown, in up position, a

transverse sectional view of the shuttle box which is vertically movableand mounted in housings 33 supported on the lay frame structure. On itsend faces are tongues which operate in channels 34 in the housings andits vertical action covers a space equal to the center to centerdistance between twovadjacent shuttle compartments. The upper end of the`lifting standard 18 is secured to the lower ioor o f the shuttle-boxand serves to support the latter and control'its vertical 17 down,lowering the standard 18 with the Y shuttle-box and bringing the latterinto its y making connection with the ejector it .on the lower,

down position', the weight of the parts together with the tension of thespring 37 effecting this result. A

The shuttle-box, however, I position only solong asV is required for thecam to make another half revolution, the larger lobe of the latterforcingthe lever 8 downwardly into' its former position and lraising theshuttle-box again into its up,

position.

The foregoing covers one cycle of movement of the parts to lower andraise the shuttle-box. j

Figs. 6 and 7 both show an end elevation of the elements employed 'toeject an empty shuttlef-,the former illustrating the parts as they arepositioned before, and the latter after the shuttle has been removedfrom the shuttle-box. 1

'Secured to the base of the. shuttle-box housing 33 is a depending bar38, pivoted on which, at 39, is a lever 40. Extending from the upper 4end of this lever to which 1t 1s pivotally secured by the pin 41, 1s arod 42 slide 43 by means of thepin 44.

The short arm f the lever 40 is connected by a sliding joint, at 45, tothe ejector bar 46, the lower end of the latter swinging from the pin 47and the upper end provided with a forked, swinging connection jat 48from which extends the ejector arm 49. Y

Onfthe standard 18 is a conical collar 50, so positioned thereon thatthe arm 49 abuts or smaller end when the shuttle-box is. in up positionwhich, hereinafter will be termed the normal position of the latterelement.` Fig. 6 shows the shuttle-box in normal position and while thusdisposed in the apparatus the picker stick 30 `may oscillate to and frowithout interference with the arm`49, or the offset portion thereof, 49.mechanism acts to transfer shuttles, the shuttle box is lowered,together with the conical collar 50 which latter forces the arm 49outwardly so that now 'itrests on the larger.

diameter of the collar`(see Figs. 11 and 12).

The offset portion 49 is now in the path of the picker stick 30,engaging when it is drawn o yer on the forward stroke of the stick andresults in rearranging the other elements in the ejector mechanism, asisshown in Fig.

` 7. Thus in one movement forwardly the picker-stick acts to throw twooperative shuttles across the lay and. an empty shuttle out of themechanism. f

remains int this IBut when the vIt will be understood that the operationof l Figs. 1s, 19 'and 2o.

Within the shuttle is a flat spring 51, bent i i so that its outerportion abuts with a slight pressure on the thread T wound on the bobinB. An L-shape offset portion 51' extends into the depression 52 made inthe side of the shuttle. lAlsosecured on the inside wall of the shuttleis a plate 53. 1 A On the outside of the shuttle are two plates 54 and55, the former making connection with the spring 51 and the latter withthe inside plate 53. Tl `spring and all the plates areinsulated from thebody of the shuttle.

In the right hand shuttle box, R, of the loom, which is the onecontaining two shut tle compartments,\- there are inserted in a sidestrip R servin`g,\ as a portion of the side wall yof the shuttle-box,lower compartment, two plates 56 and 57 electrically insulated, andextending therefrom are wires 58 and 59 respectively. When the lowershuttle is 'thrown across the lay into the shuttle-box R, the respectiveplates make mutual contact, --54 with 56 and 55 with 57, all platesbeingextended slightly outside of their holdingk elements to insure absolutecontact, relatively. 4 In the process of operating the loom the threadis gradually drawn from the' bobbin until but a comparatively few turnsare left on the tapering end of the spool. The spring 51 follows thereducing diameter of the body of thread until it bears on the few turnsIremaining and at this po'int the L-shape end of the spring contacts withthe plate 53 and the electrical circuit is closed, resulting inenergizing the solenoid 36.

Immediately the electrical circuit is closed, the solenoid pulls'thepawl 35 downwardly als los

and the elements involved in theoperation .I

of lowering the three-compartment shuttlebox L are put into'actionf-ashereinbefore explained. Y

t If reference be had to Figs. 13 to 17, in-

clusive, a comprehensive understanding of the movements of the shuttlesas they pass in.

and out of the shuttle-boxes'may be gained.

It is understood, of course, that the picker heads and the ejector slidehave no vertical movement, and that the picker heads in both boxes arealignment. y

Assume, first, that the magazine 60 is filled in respective horizontal'.Figs. 6 and 21.

y lay frame where it connects with fully stocked shuttles, that theyshuttleox `is in normal position, that shuttle #2 is (partially stockedand shuttle n the passing of the two shuttles, #l and #2, fromshuttle-box L to shuttle-box R, the lower of the two, shuttle #1 effectsthe closure of the electrical circuit which causes the pawl 35 to' bedepressed.

'Before the release of these two shuttles from shuttle-box R the laymoves and the pawl engages the pin 27 which indue course moves the arm28 oliI the lever 8, but the latter cannot at this point rise becausethe roll 10 is in contact with the larger iameter dwell@ on the cam 6.During the return movement of the lay, are thrown back into thecompartments from which they started, e and b, respectively.

On further movement of the cam theroll l0 will/pass tothe smallerdiameter: dwell y, allowlng the shuttle-box L to. drop into low position(see Fig. 14), remaining thus until the picker-stick 30 has movedforwardly, throwing the'shuttles #2 and #3 to shuttle-box R andsimultaneouslycausing, through the agency of the lever 40, the ejectionlof the empty, shuttle #l into any, con! venient place, as the hopper H.

Immediately following the ejection of the empty shuttle #1 the highpointof cam-approaches the roll 10 and the shuttle box L is traised quicklyto its normal or up position while the shuttles are in shuttle box R.

The weaving continues with the two shuttles #2 and #3 operative, until#2,- is exhausted, when the procedure just outlined will berepeated,-the shuttle #2 now being ejected, as shown in Fig. 16. Theloom tenders work in connection with shuttle changing is confined whollyto the duty of keeping the magazine supplied with fully stockedishuttles.

It will be observed that in Figs. 13 to 17 a plate 6lis shown positionedon the outside yof the shuttle-box when it is in normal position andwithin it when in down position. The purpose bf this plate is to holdback o r support the upper shuttles,-.as #4, #5 and #6 (see Fig. 14) atthe time the two shuttles #2 and #3`are being passed to the othershuttle-box R. The actuation of this plate 61 is accomplished Looselysecured to the end .of the stud 17 is a rod 62 which extends to the topof the with one leg of the. bell-crank 63. On the opposite leg of thisbell-crank a rod 64 makes connection with the pin'65, secured in theplate 6l.; 1`wo pins 66 and 67 fixed in the plates are Joined by the rod68 and s opositioned that they D swing the plates toward each otherfwhenentering the shuttle-box, thus facilitating the entry of the platesbetween .the `pointed ends offthe shuttles, as seen'in Flg. 2

#l empty..

the shuttles #l and #2.

vin the lifting by mechanism shown inrod 62 may be required, atelescopic with shuttles there mighty be an interference between thepicker-heads and the pointed ends of the shuttles as the latter passdownwardly by the former, were there no provisionmade to prevent thisoccurring.

In Fig. 9 is shown an-auxiliary bumper arm 70, pivotally secured totheinner end of the shuttle-box housing. 1

The picker-stick returning, abuts on the end of this bumper and receivesthe shock of the shuttles as they are thrown from the other shuttle-boxagainst the picker-heads.- But upon the shuttle-box L descending, thestud 7 1 forces the bumper' away from/the pickerstick which then maymove further toward the end of the housing, bringing the picker-headsout of reach of the descending shuttles. A spring 70 holds the bumper innormal position, as seen in full lines, Fig. 9. Tensioning means tendingto swing thepicker-stick in the direction of the arrow is provided at 72as illustrated in Fig. 7 of the drawings.

To provide constancy in operation of our apparatus we equip it withcertain safety appliances.r For instance, the standard 18 see Fig. 10)lower end and the solid shaft portion 18 extends therethrough,terminatin in a threaded end on which is the nut 7 -3. ntermediate theend of the bushing and the shackle 74 is a nut 75 and on each side ofthe bushing and abutting on one of the respective nuts'is a spring 76.Thus a yielding, telescopic action is provided for in either directionwhich avoids breakage of parts should a jam occur mechanism. v

yReferring to Figs. 1, 3, 4 and 5, the arm 9 has la' stud 77 locateddirectly above the roll 10. During rthe oscillations of the plcker-lstick 30 the long and short dwells, and y, O n the cani 6 are invertical alignment with tlus stud as illustrated in Fig. 4 ofvthe'drawings.

in its lowermost posihas a bushing 72 pressed into its l lm l tion onthe cam, then the lever 8 could rise, out of time with the othermechanism, and precipitate a conflict between the parts -due to the factthat the shuttle-box 32 would belowered prematurely- But bytheemployment of the stud 77 this condition is not present and confusion ofmovements of the parts impossible, even should the lever 8 be unlockedby the arm 28, as in this case the stud would abut on the surface y (seeFig. 4), and hold the lever, until the picker-stick had completed itsmovement, in substantially the same position in which it was when lockedby the arm 28.

In correct sequence of movements .of the parts, to raise or lower the'shuttle-box, the roll 10 remains always in contact with some portion ofthe cam face, and when the roll is contacting with the cam dwell g/theStud 77 passeson the inside of the flange which, projecting from theside of the cam body serves as this shorter dwell, as seen in Fig. 5.

Before the thread on the bobbin becomes wholly depleted it must be cutor severed fromy the body of woven material M. In Figs 34 and 35 weillustrate the, device which we prefer for the accomplishment of thispurpose.

On a forwardly extending portion-of the frame 1 of the loom is attacheda slide holder 78 within which operates a slide 79. Secured to the slideand offset therefrom is a cutting knife 80. A pin 81 extends through aslot in the side of the slide holder and engages the oscillatory arm 82which is pivoted at 83 on the bracket 84 fixed on the slide holder'.

On the upper end of the arm 82 is an outwardly disposed stud 85x, and at86 is a spring which normally holds the slide in retracted position. r

On the toplof the shuttle-box 32 is secured a bracket with a downwardlyhanging foot 87.

.When the shuttle-box is in normal or up position and swings forwardlyand backwardly with the lay frame, this foot 87 clears the stud 85, butwhen the shuttle-box 'is lowered and swings forwardly the foot engagesthe stud and causes the slide to be advanced so that it cuts the threadT extending from the bobbin in the lower shuttle. It will be observed byreference to Fig. 25 that the `cutting knife is shaped so that it willcut either moving forwardly or backwardly,`

' the intention being to do the cutting on the `forward stroke, but ifit misses on this movement it will be quite sure to engage the thread asit returns.

As has previously been stated, the actuation of` our shuttle changingapparatus ,is accomplished by wholly automatic means. After filling thehopper with stocked shuttles the loom tender simply throws a switch,starts his loom and gives no further thought to this particular featurein the operation of the loom,-his only hopper is supplied with shuttles.

Lered.

care being to see that thev In Figs. 13 to 17 inclusive, arediagrammatically shown thethree-shuttle box and the shuttles in thedifferent positions they assume, incident to the passage of the latterIin and out of the mechanism.

In Figs. 24 to 28 inclusive, We illustrate the same elements, andsequence of movements of the parts covering 'one cycle in the operationof ejecting an empty and placing in operative position in the -apparatusof a fully 4stocked shuttlethe several sectional 'views being takenlongitudinally of the shuttle boxes. ,f 4

In Fig. 24 two operative shuttles, #1 and, #2, are shown in shuttle boxR (twoshuttle box) in position to be thrown across the lay intocompartments c and b, respectively, of shuttle box L (three-shuttle box)by the actuation ofthe picker stick 30-tlie three-shuttle box being inup position.

Let it be assumed that lshuttle #2 is partially stocked and that shuttle#1 is empty and about to be removed from the loom. The result of themovement of these two shuttles, #1 and #,2, forwardly, is shown in Fig.5. This is movement number one.

Next, the three-shuttle box is L"lowered, as seen in Fig.26,-constituting movement number two; and following this action the` theshuttles and the apparatus as lit was delineated in Fig. 24,--exce tthat the magazine ,60 contains one less s uttle.

It/ will be observed that on the downward movement of the three-shuttlebox 32 the separating plates 61 actnto support the shuttles #4, 5 and 6so -thatno conflict arises between the shuttles #3 and #4 when thefprxie is projected into the opposite shutt e ox.

Fig. 29's a horizontal section, or sectional A j plan throu h the lowercompartment of the three-shutt e box showing particularly the ejectorslide 43'which is reci rocably mounted in the shuttle" box housing'element 33.

The slide, itwill be observed, is disposed outwardly -of the shuttle box32 so as not to conlict with the latter when it is' raised or low- Itmight be-well` to state that theb impact of the ejector head andlikewise ofthe picker heads against the ends of the shuttles is of suchpotency that neither of the heads need 2o trap 88 on the under side ofwhich is' a stud travel the full length of thegshuttle compartments togive sufficient momentum 'to the shuttles to project them out'of theboxes.

` The ordinary two-shuttle loom is provided with facilities .forprotecting the working parts should a shuttle fail to throw completelyacross the lay from one box to the other in the operation of weaving.l a

This protective measure is of course reu-5 i employed to accomplish thisobject is illustrated.

In the ioor of shuttle compartment cl of the three-shuttle box, is apivotally mounted- 89 preferably made of some non-metallic substance orat least covered with any material insulating it from any other elementwith which it contacts. On the shuttle box housing 33 are two` springarms 90 and 91 which also are insulated from the metallic portions ofthe loom by any suitable insulating material, as the libre block 92.When the shuttle box is in up position, these spring arms are not inmutual contact. p

At a convenient location on the lay frame but in contiguous relation toone of the protector fingers 93 (being one of the old elements in theloom), is a bell crank 94, pivotally mounted in the bracket 95. On theshort arm, 94', of this crank a link 96 is connected and this latterextends and makes connection with the armature rod 97 of the solenoid98.

When the three-shuttle box 32 is in up position and the lay frame isoscillating for- (wardly and backwardly, `the parts are disposed` asseen in Figs. 30 and. 33, the protector dog or short arm 93 of theprot'ector finger passing over the bumper block 99 (this Aalso being anold part of the loom), and no actionl of the elements embodied intheysafety device takes place. 'When the three-shuttle box is lowered,however, the stud ,89 causes the two springs 90 and 91 to make mutualcontact-the 'shuttle holding the trap 88 against upward movement in thebox.

This r'esults in closing an electrical circuit, through the wires 'w anda, energizing the solenoid 98 and forcing 'the arm 94 downwardly and theprotector finger 93 forwardly. Just at this particular time the layframe is nearly at its rearward position and the empty shuttle about tobe ejected. But in the event that the ejector parts fail to dischargethe shuttle completely from the box, on the forward movement o f the layframe the P130- tector dog 93', which already down (see idot and dashlines, Fig. 33) engages the Abumper block 99 on the main frame of theloom and forces it forwardly suiiciently to .throw out the drivingclutch of the loomthereby stopping all action of the loom parts.

'It'will be understood that during a por` tion of the time in which fthelay frameis moving forwardly, assuming that the threeshuttle box is infdown position, the empty shuttle is holding the springs 90 and 91 inrelative contact, with the result that the dog 93 is in readinessto acttostop the looin.

But if the parts function properly and the shuttle is discharged fromthe box the springs separate before the dog reaches the bumper block andthe loom mechanism continues to operate without interruption.

In viewofthe fact that in the conventional type of two-shuttle looms aquite consider-v able amountlof time is corsumed in the operation offrequent shuttle changing, and especially whenv it is considered thatthis time is absolutely a loss in productive effort, our presentinvention, it is believed, will become a potent factor in reducingmanufacturing costsof textiles. l f

What we claim and desire-to secureby IJetters Patent is the other sideof the'loom and shiftable upwardly and downwardly to arrange an emptybox above the path of the shuttles to receive a full shuttle and movabledownwardly to carry the full shuttle to the shuttle path and the-emptyshuttlev below the shuttle path to discharge the same, each'of the boxesof the three box assembly having a bottom wall and the bott'om vwallscompletely separating the boxes, and means operated by the exhaustion ofa shuttle while the latter is in the two box assembly to shift the threebox assembly automatically.

2.'` A loom of the class described, including a two box assembly locatedat one side of the loom, a three box assembly located at the other sideof the loom and shiftable upwardly and downwardly to arrange an emptybox above the path vof the shuttles to receive a full shuttle andmovable downwardly to carry an empty shuttle below lthe shuttle v path,each of the boxes of the three box assembly having a bottom wall and thebottom walls completely separating the boxes, means operat'ed by anexhaustion of a shuttle while the latter is in the two box assembly forautomatically moving the three box assembly downwardly, and means forautomatically ejecting the empty shuttle when the three box assembly ismoved downwardly.

3. A loom of the class described, includi ly "and downwardly to arrangean empty box above` the path ofthe shuttles toI receive a full shuttleand movable downwardly to carry an empty-shuttle below theshuttle path,`

each of e boxes of the three box assembly having a bottom walland thebottom walls: col'npletely-separating the boxes, means for normallylocking` the shiftable .assembly against upward and downward movement,and means operated by the exhaustion of 'a shuttle while the latter isin the two b O assemgly to move the shiftable assembly down war 4. Aloom of the class described, including` a two box assembly located atone side othe loom, a three box assembly located at the other side ofthefloom and shiftable upwardly and downwardly to arrange an empty boxabovey the path of the shuttles to receive a full shuttle and movabledownwardly to carry an' empty shuttle below the shuttle path, means fornormally locln'ng the shiftable assembly against upward and downwardmovement, means operated by the exhaustion `of a shuttle while thelatter is inthe two box assembly to move` the shiftable assembly downi.ward, and means -for automatically .ejecting the empty shuttlepositively from the assembly.

5. Aloom of the class described, including a two box assembly located atone side of the loom, a shiftable three box assembly located at theother side of the loom, means for simultaneously throwing a pair of rshuttle below the shuttles back and forth from one assembly to theother, means for locking the three box assembly, means operated by theexhaustion of a shuttle while the same is in theptwo box Y the loom, ashiftable three box assembly located at the other side of the loom,means for simultaneously throwing a pair of shuttles back and forth fromone assembly to the other, means for normallydocking the three boxassembly against movement, means operated vby the exhaustion ofa shuttlewhile the same is in the two box assembly for unlocking the shiftablassembly, means for automatically .moving the shiftable assemblydownward when theempty shuttle is therein to carry the empty shuttlebelow the path of the shuttle, and means for positively ej ecting theempty shuttle simultaneously with the throwing of a pair of shuttles tothe two box assembly.

7. A loom of the class described, includ- '65 ing a two box assemblylocated at one `side of the loom, a shiftable three box assemblylocated-at the other side of the loom, means for simultaneously throwinga ,pair of shuttles back and forth from one assembly to the other, meansfor 'normally locking the threev box assembly against movement, meansoperated by the exhaustion of a shuttle while the same is in the two boxassemf 'i bly for unlocking the shiftableassembly, means forautomatically moving the shiftable assembly downward when vthe emptyshuttleis therein to carry the empty shuttle below the p'athfof theshuttle, means for automatically and positively ejecting the emptyshuttle simultaneously with' the throwing of a pair of shuttlesf tothe,two

box assembly, and means lfor automatically moving the shiftable assemblyupwardly to carry an empty box above the path 'of the shuttles toreceive a full shuttle.

a twov bx assembly located-at one side of the loom, a shiftable threebox assembly located `at the other side of theloom, each `of thev boxesof the three box assembly having a bottom wall and the bottom `wallscompletely separating the boxes, means for.

esv

s. A100111 of the dass described, including throwing a pair of shuttlesback and o`rth from one assemblyl to the other, 'and means operated bythe exhaustion of a shuttle while the latter'isin the two box assemblyto automatically-'shift thethree box assembly, to carry the emptyshuttle beyond the path of the shuttles and a f/ull shuttle into thepath of the shuttles;

'9. A loom of the class described, including a two .box assembly locatedat one side of Vthe loom, a shiftabl'e three box `assembly located atthe other sidefo the loom, means for throwinga pair of shuttles backand' forthl from one assembly to the other, means operated by the.exhaustion of a shuttle while thesame is in the two-box assembly toautomatically shift the three box assembly to.V

carry the empty shuttle beyond the path of the shuttles and a fullshuttle. into the path of the shuttles, and means for automatically andpositively ejecting the empty shuttle while-'the shift-able assembly isin such posi- 10. A'loom of the'cla'ss'-described, including a two boxassembly located at one side of the loom, a shiftable three box assemblyl cated at.the other side of the loom, means for throwing a pair ofshuttles back and forth from one assembly to the other, means operatedby the exhaustion of a shuttle while the latter is in the two boxassembly to automatically shift the three box assembly to carry theempty shuttlenbeyond the path of the shuttles and a 'full shuttle intothe path of the shuttles, means for automatically and positivelyejecting the empty shuttle while -the-'shiftable assembly is in suchpositon, and means for automatically shifting the three ian 'I boxassembly to carry another of its boxes (at the other side of the loom,means ,for throwing a pair 'of shuttles back and forth from one assemblyVto the other, means Vfor shuttle into the shuttle normally locking theshiftable assembly against such movement, means operated by the'exhaustion of a shuttle while the same is in the two box assembly forunlocking the shiftable assembly, means for moving the shiftableassembly when the empty shuttle is therein to carry the empty shuttlebeyond the path of the shuttles and to carry a full path, and means forautomatically andpositively ejecting the empty shuttle. i 12. A loom ofthe class described, including a two box assembly located at one side ofthe loom, a three box assembly located at the other side of the loom andhaving one of its boxes normally located beyond the path of theshuttles, each of the boxes of 'the three box assembly having a bottomwall and the bottom walls completely separating the boxes, means forthrowing a pair of shuttles back and forth from one assembly to theother, means for automatically feeding La full shuttle to the said boxof the three shuttle assembly, means operated by the exhaustion of ashuttle while the same 1s in the two-box assembly for shifting the threebox assembly to carry the said full shuttleJ into the path of theshuttles and the empty shuttle out of the path of the shuttles, andmeans for automatically discharging-the empty shuttle.

13. A loom .of the class described, including a two box assembly locatedat one side of the loom, a three box assembly located at the other` sideof the loom and having one of its boxes normally'located beyond the pathof the shuttles, shuttles back to the other, means for automaticallyfeeding a full shuttle to the said box of the three shuttle assembly,means operated by the exhaustion of a shuttle while the same is in thetwo-box assembly for shifting the three box assembly to carry the saidfull shuttle into the path of the' shuttles and the empty shuttle ouofthe path of the shuttles, means for discharging the empty shuttle fromthe three' box assembly simultaneously with the movement of a pair ofshuttles from the three box assembly to the two box assembly, and meahsfor returning the three box assembly toits 14. A loom of the .classdescribed, including a twobox assembly located at one side' of a loom, athreey box assembly located at the oppositeside of,- the loom andshiftable upwardly and downwardly and having one of its means forthrowing a pair of b and forth from one assembly.

.within the feeding a full shuttle to the said box of the three shuttleassembly, means operated by the exhaustion of a shuttle while the sameis in the two-box assembly to move the three shuttle assembly downwardto carry a full shuttle into' the shuttlepath and the empty shuttle to apoint below the shuttle path, means for positively ej ecting the emptyshuttle from the three shuttle assembly, and means for returning theshiftable assembly to its initial position.

15. A loom of the class described, including a two box assembly locatedat one side of.

a loom, a three box assembly located atthe opposite side of the loom andshiftable upwardly and downwardly and having one of its boxes normallylocated above the path of the shuttles, means for throwing a pair ofshuttles back and forth from one shuttle assembly to the other, meansfor automatically feeding, a full shuttle to the said box of the threeshuttle assembly, means operated by the exhaustion of a shuttle whilethe same is in the two-box assembly to move the three shuttle assemblydownward to carry a full shuttle into the shuttle'path and the emptyshuttle to apoint below the shuttle path, means for positively ejectingthe empty shuttle simultaneouslyv with the movement of the pair ofshuttles from the three box assembly to the two box assembly, land meansfor returning `the three box assembly to its initial position prior tothe return of the pair of shuttles to the said three box assembly.

`16. A device of the class described, including a two box assemblylocated at one side of the loom, a three box assembly located at theother side of the loom with one of its boxes arranged normally above thepath of the shuttles, each of the boxes of the three boxassemly havingabottom wall and the bottom walls completely se arating the boxes, ahopper located' above t e said box in position for automatically feedinga full shuttle to the same, means for throwing a pair of shuttles backand `forth from one assembly to the other, means operated by theexhaustion of a shuttle while the latter is in the two-box assembly formoving the three shuttle assembly downward to carry a full shuttle intothe path of the m0 shuttles and the empty shuttle below the Ipath of thevshuttles to discharge the latter, means for returning to its initialposition, and automatically operated means for supporting vthe shuttlesy hopper while the three shuttle assembly isin its flower position. a

17. vA device of the class described, including a two boxassemblylocated at one side of.A

the loom, a three box assembly located at the other side of the loomwith one of its'boxes the threeshuttle box assembly means for throwing apair assembly to its initial position, device movable into and arrangednormally above the path of the shuttles, each of the boxes of the threebox assembly having a bottom wall and the bottom walls completelysepa-rating the boxes, a hopper located above the said box in positionfor automatically feeding a full shuttle to the same, of shuttles backand forth from one assembly to the other, means operated by theexhaustion of a shuttle while the latter is in the two-box assembly formoving the three shuttle assembly downward to carry a full shuttle intothe shuttles and the empty shuttle below lthe path of the shuttles todlscharge the latter, means for returning the three shuttle box asupporting out of `the hopper for supporting the shuttles within thehopsimultaneously a pair sition.

per when the three box assembly is in its lowered position, and meansfor automatically operating the supporting device when the three .boxassembly is raised and lowered.

18. A device of the class described, including a two box assemblylocated at one side of the loom, a three box assembly located at theother side of the loom with one of its boxes arranged normally above thepath of the shuttles, a hopper located above the said box in positionfor automatically feeding a full shuttle to the same, means for throwinga pair of shuttles back and forth from one assembly to the other, meansoperated by the exhaustion of a shuttle while the latter is in the twobox assembly for lmoving the three shuttle 'assem ly downward to carry ayfull shuttle into the path of the shuttles and the empty shuttle belowthe pathof the shuttles to discharge the latter, means for returning thethree shuttle box assembly to its initial position, spaced shuttlesupporting plates pivotally mounted on the three box assembly at the topthereof, and means for swinging the supporting plates .inwardly andoutwardly when the three box assembly is raised and lowered to supportthe shuttles within the hopper when the three box assem ly is in itslowered po- 19. A device of the clamA described, including a twobox'"assembly located at one side of the loom, a'thr'ee box assemblylocated at the other sideof the loom with one of its boxes arrangednormally above the path o the shuttles, a hopper locatedabove the saidbox in position for automatically feeding a full shuttle to the same,means of shuttles back and forth from one assembly to the other, meansoperated by the exhaustion of a shuttle while the latter is in the twoboxassembly for moving the three shuttle assembly downward to carry afull shuttle into the ath of the shuttles and the empty shuttle be owthe path of thev shuttles to discharge the latter, means for returningthe three s uttle box assembly to its initial the path ofmovement,

ing a two box assembly located atone the loom, a shiftable f bly,

for throwing position, spaced shuttle supporting plates pivotallymounted bly at the top vthereof and adapted tolswing into and out ofthehopper to support the shuttles therein when the three box assembly is inits lowered position, means for connecting the plates for causing .thesame to move simultaneously toward and from each other, and means forplates when t 'e said three raised and lowered. l

20. A loom of the class described, includbox assembly is ing a two boxassembly located at one side of the loom, a 4shiftable three boxassembly located at the other side of the' loom and' cooperating withthe two boxv assembly and movable upwardly and downwardly to carry uponthe three box assemautomatically actuating the one shuttle box above thepath of the shuttles v to receive a full shuttle and another boxbelow'the path of the shuttles to discharge an empty shuttle, meansforraising and lowering the three shu lebox assembly` comprising acontinuously rotat' cam having two concentric portions of di erentdiameters, a cam actuated lever having an arm arranged to be engaged bythe cam, means for connecting the three box assembly with the saidlever, locking means for holding the said lever out of engagement withthe cam to hold the three box assembly normally against and meansoperated by the exhaustion of a shuttle while the latter is in the twobox assembly for. moving the lever out of engagement with the camactuated lever to permit the latter toshift the three box assembly.

21. A loom ofthe class described,I includside of three box assembly lo'-cated at the other side ofthe loom and cooperating with the two boxvassembly and movable upwardly and downwardly to carry one shuttle boxabove the path of the shuttles to receive a full shuttle and another box'be- 'low the path of theshuttles to discharge an empty shuttle, meansfor raising and lowering the three shuttle box assemblyr comprising acontinuously rotating cam having two concentric portions of differentdiameters, a cam actuated lever having an arm arranged to be en aged bythe cam, a vertically movable standard supporting the three boxassemends and having arms connected with the standard and 'th the cam.actuated lever, a rocking lever arranged to engage and the cam actuatedlever out of engagement with the cam, and means operated by theexhaustion of a'shuttle while the `latter is in the two box assembly formoving the rocking lever out of engagement with the cam actuated-leverto'permit the cam -to lowerv and raise the three box assembly. i

22. A loom of the class ing a two box assembly located at. one slde holda connecting lever pivoted between its deseribea'indadof the loom, as'hiftable three box assembly located at the other side of the loom andcooperating with the two box assembly and movable upwardly anddownwardly to carry one shuttle box above the path of the shuttles toreceive a full shuttle and another box below the path of the shuttlestodischarge an f the rockl the exhaustion of a shuttle while the latterthe rocking lever operating means to permit the cam actuated lever to beengaged by the cam for lowering and raising the threefbox assembly.Y

23. A loom of the class described, including a two box assembly locatedat one side of the loom, a shiftable three box assembly located at theother side of the loom and cooperating with th shuttle box above thepath of the shuttles to receive a full shuttle and another box below thepath of the shuttles to discharge an emp tric portions of dilierentdiameters, a cam actuated lever having an arm arranged to be engaged bythe cam, means t e three box assembly with the said lever,

austion of a shutmeans pera'tedby the exh two box assembly tle while thelatter 1s 1n the Shift bly, and means carwith the'cam for preventing thecam actuated lever from operating should the same be 11nlocked out oftime.

24. A loom of the class described including a two box assembly locatedat one side of the kmovable upwardly and downwardly'tocarry one boxabove the shuttle path to receive a fulll shuttle and another below theshuttle lever pivoted between l and movable upwardly and d ncontlnuously e two box assembly and movl able upwardly and downwardly tocarry one t g shiftable upwardly and empty shuttle,

by the cam actuated lever for contacting t path to discharge an emptyshuttle, a conhaving concentric tlnuously rotating cam portions ofdifferent diameters; a cam actuated lever having means engageable withthe cam for oscilla-ting the lever, necting the operating posithe saidlocking y the exhaustion is in the two box tion, an operating device formeans, and means operated b of a shuttle while the latter the classdescribed includox assembly located at one side of the lay of the loom,a shiftable three box assembly located at the other side of the laycooperating with the two box assembly carry one box above the shuttlepath to receive a full shuttle and another below the shuttle path todischarge an empty shuttle. a

rotating cam portions of different diameters, a cam actuated leverhaving means engageable with the cam for oscillating the lever, meansfor connectingthe lever with the three box assembly a pawl carried bythe lay and'movable om a. position for actuating the 0perating lever,and means operated by the exhaustion of a shuttle while the latter is inthe two box assembly for actuating the pawl: f

side of the lay and downwardly to arrange one box above the path of theshuttles to receive a full shuttle and another box below the path of theshuttles to discharge an a reciprocating ejecting slide carried by thelay and arrangedto eng the shuttle in the shuttles to discharge an emptyshuttle, a reciprocating'ejecting slide carried by the lay7 and arrangedto engage the l 1,7os,s25

5 slide, an ejecting arm carried by the lever and movable into and outof the path of the lay, and means carried by the three box assembly formoving the ejector arm into the path of the picker stick when the threebox assembly -moves downwardly. f l

28. A loom of the class described, including a two box assembly locatedat one side of the lay of the loom, a three box assembly arranged at theother side of the lay and shiftable upwardly anddownwardly to arrangeone box above the path of the shuttles to receive a full shuttle andanother box below the path-of the shuttles to discharge an emptyshuttle, a reciprocating ejecting slide carried by the lay and arrangedto engage the shuttle in the box below the path of travel of theshuttles when the three box assembly is' lowered, a pivoted ejectinglever, means for connecting the'ejecting lever with the slide, anejector arm carried by the lever and movable into and out of the path ofthe picker stick, and a vertically movable standard carrying the threebox assembly and havinga tapered portion arranged to move the ejectingarm into ythe path ofthe picker stick Vwhen the three box assembly movesdownwardly. C

'29. A loom of the class described including a three box assemblylocated at one side of the lay of the loom and movable upwardly anddownwardly to arrange vone of its boxes above the path of the shuttlesto receive a full shuttle and another box below the pathof the. shuttlesto discharge an empty shuttle, a reciprocating ejecting slide carried bythe lay and arranged to engage a shuttle in the box below the shuttlepath when the assembly is moved downward, a pivoted ejecting lever, asecond lever pivoted between its ends and connected at one end to theejecting lever, a

link connecting the other end of the said second lever with the slide,-a laterally swinging ejector arnrcarried bythe ejector lever and movableinto and'out of the path of the of the path o the picker stick, andmeans 'movable upwardly and downwardly with the assembly for actuatingthe ejector armto move the sameinto the path of the picker stick whenthe assembly moves downwardly.

30.. A loom of the class described including a three box assemblylocated,- at one'side of the lay of the loom and movable upwardly anddownwardly to arrange one of its bxes above the path of theshuttles toreceive a full shuttle and another box below the path of -the shuttlesto discharge an empty shuttle, a reciprocating ejecting slide carried bythe lay and arranged to engage a shuttle in the box v 'i -65 belowtheshuttlepath'when the assembly is picker stickand normally maintainedoutmoved downward, a pivoted ejecting lever, a second lever pivotedbetween its ends and connected at one end to the ejecting lever, a linkconnecting the other 4end of the said second lever withthe slide, alaterally swinging ejeclor arm carried by the ejectin'glever and`movable into and out of the path of the picker stick and normallymaintained out of the path of the pickerstick, a vertically movablestandard supporting the said assembly, and a cone collar mounted on thestandard 'and arranged to move the ejector arm into the path of thepicker stick whenthe assembly moves downwardly.

31. A loom of the class described including a three box assembly locatedat one side of the lay of the loom and movable upwardly and downwardlyto arrange one of ils boxesv above the path of the shuttles to receive afull shuttle and another box below the path of the shuttles to dischargean empty shuttle, a4 picker stick, a movable bumper carried by the layand normally arranged to limit the backward movement of the icker stick,and means carried by the assem ly .and arranged to engage the bumper andmove the same from iis normal positin when the assembly moves downwardto permit the head of the picker stick to clear the shuttles during thedown-` ward and upward movement ofthe assembly.

32. A loom of the class described including a three box assemblylocated' at'one side of the lay of the loom and movable upwardly anddownwardly to arrange one'of its boxes above the path 'of the shuttlesto receive a full shuttle and anotherl box^below the path of theshuttles to discharge an empty shuttle, a picker'stick, a pivoted bumpercarried by the lay, yieldable means for normally maintaining the bumperin position for limiting the backward movement of .the picker stick, andan abutment carried by the said assembly for moving the bumper out ofits normal position topermit the picker stick to move backwardly awayfrom the shuttles during assembly. 33. A loom of the class describedincluding a three box assembly located at one side `ofthe lay of theloom-and movable upwardly and downwardly to varrange oneof its boxesabove the path of the shuttles to receivea full shuttle andfanother boxbelow the downward and upward movementvof the the path -of theV shuttlesto discharge an 1 i :empty shuttle, a movable knife arranged to severthe'thread of a shuttle in the box below the shuttle path, andmeansactuated b the lay ofthe loom for operating the kni e when theassembly is moved downward.

of the shuttles toy discharge ,anempty shutvtle, .a slidable knifearranged to' sever the thread of ashuttle in the box below the shuttlepatli when the said assembly is lowered, a lever connected with andadapted to r'eciprocate the knife, and an abutment carried by the saidassembly andl nornially'arranged to clear the said lever during themovements of the lay and arranged to be carried by the downward movementof the assemblx into position for engaging the lever.

35. A loom of the class described including a three box assembly locatedat one side of the lay of the loom and movable upwardly and ydownwardlyto arrange one of its boxes above the path of the shuttles `to receive afull shuttle and another box below the path of the shuttles to dischargean empty shuttle, ejecting mechanismior discharging `an empty shuttlefrom the box below the shuttle path, a protector finger normallyarranged in an operative position, and mechanism for moving theprotector finger into position forv stopping the loom, comprising acircuit closing device having a member mounted on the said assemblyandarranged to be engaged by a shuttle in the box below the shuttle pathfor closing the circuit and automatically movable to o en the circuitwhen the said shuttle is discharged.

36. A loom of the class described including a three box assembly locatedat 'one side of the'lay of the loom andmovable u wardly and downwardlyto arrange y011e of its boxes above the path of the shuttles to receivea full shuttle and another box below the path of the shuttles todischarge anempty shuttle, f ejecting mechanism for discharging .anempty shuttle from the box below the shuttle path, a protector fingernormally arranged r1n an operative position, and mechanism .for movingthe protector linger into position for stopping 'the loom, com rising acircuit closing device, 'a vmember pivoted to the .said assemblyand-arranged to extend into the shuttle box below the shuttle path andadapted to be engaged and moved outwardly by a. shuttle in the saidvbox,and spring contacts maintainedxclosed by said member when engaged bysaidshuttle, said spring contacts\ opening automatically when the shuttleisdischarged and the said member relieved of A pressure. y

37. Aloom ofthe class described including afthree boxlassembly locatedat one side of the lay ofthe loom and movable upward-- ly and downwardlyto arrange one of its boxes above the path of the shuttles to relceive afull shuttle and another box below the path of the shuttles to dischargean empty shuttle, ejecting mechanism for discharging an empty shuttlefrom t e box below the shuttle path, a protector ger normally arranged man operative position, and mechanism for'movmg the protector finger unto-lng a three bx assembly located at one side .lever will be actuatedwhen position for stopping the loom, comprising I a circuit closingdevlce'arranged to be engaged by a shuttle in the box below the shuttlepath, a solenoid in circuit'with the ciruit closing, device, and meansactuated by said solenoid for engaging the finger. and

movingthe same to its loom stopping position.

A 38. A loom of the class described includof the lay of the loom andmovable upwardly and downwardly to arrange one of itslboXes above thepath'of the shuttles to receive a .full shuttle and another box'belowthev path of the shuttles to discharge an, empty shuttle, ejectingmechanism for discharging an empty shuttle from the boxbelow the shuttlepath,'a protector linger normally arranged in an operative position, andmechanism for moving the protector finger into position for stopping theloom, comprising a circuitclos` ing device arranged to be engaged by ashuttle in the box below the shuttle path, a solenoid in circuit withthe 4circuit closing device, a lever arranged to swing and move thengerto its loom stopping position, 'eldable means for holding the lever outo` contact with the finger, and means for connecting the lever with thesolenoid whereby the closed.

In testimony whereof'we have hereunto set our hands this 17th day ofOctober, 1928. .r'

\ ALPH w. vKNowLToN.

HAROLD c. BENNETT.

los

the ciruit is 95

